CA2540787A1 - Digital signatures on a smartcard - Google Patents

Digital signatures on a smartcard Download PDF

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Publication number
CA2540787A1
CA2540787A1 CA002540787A CA2540787A CA2540787A1 CA 2540787 A1 CA2540787 A1 CA 2540787A1 CA 002540787 A CA002540787 A CA 002540787A CA 2540787 A CA2540787 A CA 2540787A CA 2540787 A1 CA2540787 A1 CA 2540787A1
Authority
CA
Canada
Prior art keywords
elements
signing
card
pairs
partly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002540787A
Other languages
French (fr)
Other versions
CA2540787C (en
Inventor
Ronald C. Mullin
Scott A. Vanstone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Certicom Corp
Original Assignee
Certicom Corp.
Ronald C. Mullin
Scott A. Vanstone
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US08/632,845 external-priority patent/US5999626A/en
Application filed by Certicom Corp., Ronald C. Mullin, Scott A. Vanstone filed Critical Certicom Corp.
Priority to CA002640992A priority Critical patent/CA2640992A1/en
Publication of CA2540787A1 publication Critical patent/CA2540787A1/en
Application granted granted Critical
Publication of CA2540787C publication Critical patent/CA2540787C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

A digital signature scheme for a "smart" card utilizes a set of prestored signing elements and combines pairs of the elements to produce a new session pair. The combination of the elements is performed partly on the card and partly on the associated transaction device so that the exchange of information between card and device does not disclose the identity of the signing elements. The signing elements are selected in a deterministic but unpredictable manner so that each pair of elements is used once. Further signing pairs are generated by implementing the signing over an anomalous elliptic curve encryption scheme and applying a Frobenius Operator to the normal basis representation of one of the elements.
CA002540787A 1996-04-16 1997-04-14 Digital signatures on a smartcard Expired - Lifetime CA2540787C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002640992A CA2640992A1 (en) 1996-04-16 1997-04-14 Digital signatures on a smartcard

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/632,845 US5999626A (en) 1996-04-16 1996-04-16 Digital signatures on a smartcard
US08/632,845 1996-04-16
CA002202566A CA2202566C (en) 1996-04-16 1997-04-14 Digital signatures on a smart card

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002202566A Division CA2202566C (en) 1996-04-16 1997-04-14 Digital signatures on a smart card

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002640992A Division CA2640992A1 (en) 1996-04-16 1997-04-14 Digital signatures on a smartcard

Publications (2)

Publication Number Publication Date
CA2540787A1 true CA2540787A1 (en) 1997-10-16
CA2540787C CA2540787C (en) 2008-09-16

Family

ID=36319928

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002540787A Expired - Lifetime CA2540787C (en) 1996-04-16 1997-04-14 Digital signatures on a smartcard

Country Status (1)

Country Link
CA (1) CA2540787C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8732467B2 (en) 1997-11-10 2014-05-20 Certicom Corp. Masked digital signatures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8732467B2 (en) 1997-11-10 2014-05-20 Certicom Corp. Masked digital signatures

Also Published As

Publication number Publication date
CA2540787C (en) 2008-09-16

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Effective date: 20170418